Rotation of Rigid Bodies
1
Understanding Physics
Kinematics of a rigid body
rotating about a fixed axis
2
Angular position
Consider a rigid body that rotates about a fixed axis.
The
axis (the axis) passes through point and is perpendicular to the
plane of
Potential energy and energy conservation
1
Understanding Physics
Work-energy theorem
Conservation of mechanical
energy
2
Gravitational potential energy
Consider
a body with mass falling
freely along the (vertical) axis
from point to (). Let its speed at
p
Momentum, Impluse, and Collisions
1
Understanding Physics
Kinematics
+ Newtons 2nd law
Impulse-momentum theorem
2
Momentum and impulse
Consider
a particle of (constant) mass acted on by a constant net force
during a time interval from to . The particles
PC1431 Physics IE: Tutorial 5
Question 1
As a sample of ideal gas is allowed to expand adiabatically, its pressure drops from 125
to 105 kPa, and its temperature drops from 300 K to 280 K. Is the gas monatomic or
diatomic? [Ans: monoatomic]
Question 2
A c
Tutorial 4
Question 1
Figure 1: Rod and spindle
A uniform disk rotates at 3.60 rev/s around a frictionless spindle. A non-rotating rod,
of the same mass as the disk and equal in length to the disks diameter, is dropped
onto the freely spinning disk as sho
Rotational
Dynamics &
Rolling Motion
PC1431 Lectures 21 22
Definition of Torque
Consider a force F acting on a rigid body at point P in the direction as
shown. The rod is pivoted so that it can only rotate about the point O.
F
Ftan = F sin
Then the torqu
Chapter 1: Electric
Charge & Field
Electric Charge
Coulombs Law
Electric Fields and
Calculations
Electric Dipole
Chap 2: Gausss Law
Application of the Law
Chapter 1: Electric Charge & Field
1 / 50
Chapter 1: Electric
Charge & Field
Electric Charge
Charge
Welcome
to
PC1432
Your Lecturer for Part I of III
Asst Prof Tan Meng Chwan
S12-03-08
Tel: 6516 5376
mctan@nus.edu.sg
(Lecture Group 1: Wednesday 2pm-4pm (LT6), Friday 9am-10am (LT7)
(Lecture Group 2: Tuesday 1pm-2pm (LT7), Thursday 12pm-2pm (LT5)
Im a Str
Quiz 4:
1. A large number of students take a standardized test consisting of 10 multiple-choice questions. The
number of correctly answered questions varies across students. Each student is represented in a scatter
diagram, where the x-axis is the number
PC1431: Tutorial 1 Solutions
1. Given:
R maximum
Question: =?
Approach:
(a) Choose basis wisely
(b) List down the suvat variables that we know (according to basis components x and y)
(c) Solve kinematic equation to obtain t
(d) Obtain kinematic equation f
PC1431 Tutorial 3 Solution
1. Given:
(a) Show that if released below the peg, it will return to the same height
Solution:
When the ball hits the peg, it does no work as the peg does not move
Since no work is done on the peg, no energy is lost.
By conserva
PC1431 Tutorial 3 Solution
1. Given:
(a) Show that if released below the peg, it will return to the same height
Solution:
When the ball hits the peg, it does no work as the peg does not move
Since no work is done on the peg, no energy is lost.
By conserva
PC1222
Fundamental of Physics II
AY2016/17 S1
Tutorial 1
Conceptual Questions
1) [Static Electricity]
a) Why does a plastic charged comb that has been rubbed with a cloth have the ability
to pick up small pieces of paper? Why does this ability diminish on
PC1222
Fundamental of Physics II
AY2016/17 S1
Tutorial 2
Conceptual Reasoning
1) State clearly the difference between
a. Electric field and electric potential
b. Electric potential and electric potential energy.
2) [Electric Field vs Electric Potential] T
PC1222
Fundamental of Physics II
AY2016/17 S1
Tutorial 3
Conceptual Reasoning
1) [Electricity 1]
Explain why birds can sit on power lines safely, whereas leaning a metal ladder up
against a power line to fetch a stuck kite is extremely dangerous.
2) [Elec
MasteringPhysics: Assignment Print View
http:/session.masteringphysics.com/myct/assignm.
Revision 2: Newton's Laws of Motions
Due: 12:58pm on Friday, May 13, 2011
Note: You will receive no credit for late submissions. To learn more, read your instructor's
MasteringPhysics: Assignment Print View
http:/session.masteringphysics.com/myct/assignm.
Revision 4 : Linear Momentum
Due: 12:58pm on Friday, May 13, 2011
Note: You will receive no credit for late submissions. To learn more, read your instructor's Grading
MasteringPhysics: Assignment Print View
http:/session.masteringphysics.com/myct/assignm.
Revision 3 : Energy Concepts
Due: 12:58pm on Friday, May 13, 2011
Note: You will receive no credit for late submissions. To learn more, read your instructor's Grading
The Logic of Scient if ic
Discovery
One of the most important philosophical works of our
century.
Richard Wollheim, The Observer
Wonderfully exhilarating.
Naomi Bliven, New Yorker
Karl
Popper
The Logic of Scientific
Discovery
London and New York
Logik der
9
Applications of Integration
9.1
Area between urves
We have seen how integration can be used to find an area between a curve and the x-axis.
With very little change we can find some areas between curves; indeed, the area between
a curve and the x-axis ma
- 1 -
PC1431 Physics IE
2015 2016 Semester I
TERM TEST
2nd October
Time Allowed: ONE hour THIRTY minutes
INSTRUCTIONS
1.
2.
3.
4.
5.
6.
7.
8.
9.
This is a closed book test.
This paper contains 20 multiple choice questions.
Answer all questions. Marks will
Adobe Acrobat XI Quick start guide
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Adobe Acrobat XI
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